Marine anti-net-twining propeller

Abstract

The invention discloses a marine anti-net-twining propeller. The marine anti-net-twining propeller comprises a propeller body, a movable cover ring, a transmission mechanism and an anti-net-twining device; the transmission mechanism is connected with the propeller body through a transmission rod, the anti-net-twining device is connected with the movable cover ring through a rod, and the propellercomprises propeller blades and a first cutting edge opening; and the movable cover ring is provided with a second cutting edge opening, and the first cutting edge opening and the second cutting edge opening form a shear opening. When weed or a fishing net is twined around the propeller body on a ship, the weed or the fishing net is cut up though the shear opening formed by the first cutting edge opening in the propeller body and the second cutting edge opening in the movable cover ring; when the first cutting edge opening in the propeller body and the second cutting edge opening in the movablecover ring are not sharp, a user can remove and replace the first cutting edge opening and the second cutting edge opening with the new one and use again; when the weed or the fishing net or other sundries is not twined around the movable cover ring on the propeller body, the movable cover ring is away from the propeller blades on the propeller body, and the propeller blades cannot be limited bythe movable cover ring; and when the weed or the fishing net or other sundries is twined around the movable cover ring, the movable cover ring surrounds on one side of the propeller body to ensure that the propeller blades are affected by the movable cover ring.

Description

technical field [0001] The invention relates to a propeller, in particular to a marine anti-winding propeller. Background technique [0002] With the continuous improvement of science and technology, the ship industry has become more and more developed, and people have higher and higher requirements for ships. The propeller, as a propulsion device that converts the rotational power of the engine into propulsion, is an important component, its performance requirements are particularly stringent. At present, the propellers of boats are all exposed to work. When rotating at high speed, they are easily entangled by weeds or fishing nets in the water. Harm to rare fish in the water. When the ship is driving in the shallows, the propeller is likely to collide with hard materials such as stones at the bottom of the water, causing the propeller to be easily damaged. Therefore, the propellers on the existing ships need to be equipped with protective devices, so that the propellers...

AI Technical Summary

Problems solved by technology

At present, the propellers of boats are all exposed to work. When rotating at high speed, they are easily entangled by weeds or fishing nets in the water, which not only increases the load on the engine, but also makes the propellers unable to rotate. Harm to rare fish in the water

When the ship is driving in the shallows, the propeller is likely to collide with hard materials such as stones on the bottom of the water, causing the propeller to be easily damaged

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